Author:
Biryukov Vladimir,Grachev Vladimir,Kapustin Sergey,Malyshev Kirill,Perevezentseva Yuliya,Raevsky Alexey
Abstract
An optical signal mixes up with the reference radiation of heterodyne on a sensitive photodetector site. A beat signal with wavelength separation frequency of heterodyne and information light signal is generated at the output of the photodetector. This beat frequency emittedby the detector must be in radio wave range; this means that the received signal can be processed electronically.